Data/hora: 07/06/2024 10:39:47

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Artigo em Anais de Congresso / Nota Técnica
Circulação/Nível: | -- - --
Data corrente: | 06/06/2011
Data da última atualização: | 06/06/2011
Autoria: | LAPA, K. R.; GARCIA, M. L.; SAKAMOTO, I. K.; GIANOTTI, E. P.; GARBOSSA, L. H. P.; FORESTI, E.; ZAIAT, M.
Afiliação: | Epagri
Título: | Influence of bed materials on the performance of an anaerobic sequencing batch biofilm reactor treating sewage wastewater.
Ano de publicação: | 2005
Fonte/Imprenta: | In: TALLER Y SIMPOSIO LATINO AMERICANO SOBRE DIGESTION ANAEROBIA, 7., 2005, Punta del Este. [Proceedings...]. Punta del Este: AIDIS, 2005.
Idioma: | Inglês
Conteúdo: | The performance of an anaerobic sequencing batch biofilm reactor (ASBBR) filled with different support materials for biomass immobilization: polyurethane foam (PF), vegetal carbon (VC), synthetic pumice (SP), and recycled low-density polyethylene (PE) was evaluated. The ASBBR, with total volume of 7.2 L, was operated in 8-hour batch cycles over 10 months, and fed with domestic sewage with average influent chemical oxygen demand (COD) of 358±110 mg/L. The values of the average effluent COD were 121±31, 208±54, 233±52, and 227±51 mg/L, for PU, VC, SP, and PE, respectively. A modified first-order kinetic model was fitted to temporal profiles of COD during a batch cycle, and the apparent kinetic constants were 0.52±0.05, 0.37±0.05, 0.80±0.04 and 0.30±0.02 h-1 for PU, VC, SP and PE, respectively. Specific substrate utilization rates of 1.08, 0.11, and 0.86 mg COD/mgTVS.day were obtained for PU, VC and PE, respectively. Although the highest kinetic coefficient was obtained for SP, PU was considered the best support because SP presented loss of chemical constituents during the operation.
Palavras-Chave: | Anaerobic digestion; ASBBR; Domestic sewage; Immobilized biomass; Kinetics; Support material.
Categoria do assunto: | --
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_3650.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (79946-1) - UPC - PL - -- -  -  -  - DIS